xz:tldr:b6c4e

xz: Compress a file, but don't delete the original.

$ xz -k ${filename}

try on your machine

The command "xz -k ${filename}" is a command-line instruction that compresses a file using the xz compression algorithm and saves the compressed file as a new file with a ".xz" extension.

Let's break down the command:

"xz" is the command for the xz compression utility in Linux systems. It is used to compress files and create .xz compressed archives.
"-k" is an optional parameter/option for the xz command. In this context, it is used to keep the original file after compressing it. By default, when compressing a file with xz, the original file is replaced with the compressed version. However, by adding the "-k" option, the original file is retained.
"${filename}" is a placeholder for the actual name of the file you want to compress. The "${filename}" is a variable that needs to be replaced with the actual file name. For example, if you want to compress a file named "example.txt," you would replace "${filename}" with "example.txt" in the command.

Overall, the command "xz -k ${filename}" compresses the file specified by the "${filename}" variable using the xz compression algorithm and keeps the original file intact while creating a new compressed file with the ".xz" extension.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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